[Tutor] Script won't run for no apparent reason
Selby Rowley Cannon
selbyrowleycannon at ymail.com
Fri Aug 10 22:02:14 CEST 2012
On 10/08/12 20:53, Joel Goldstick wrote:
> On Fri, Aug 10, 2012 at 3:33 PM, Selby Rowley Cannon
> <selbyrowleycannon at ymail.com> wrote:
>> On 10/08/12 20:07, Joel Goldstick wrote:
>>> On Fri, Aug 10, 2012 at 2:57 PM, Selby Rowley Cannon
>>> <selbyrowleycannon at ymail.com> wrote:
>>>> On 10/08/12 18:17, Joel Goldstick wrote:
>>>>> On Fri, Aug 10, 2012 at 1:05 PM, Selby Rowley Cannon
>>>>> <selbyrowleycannon at ymail.com> wrote:
>>>>>> I have written a small application to encrypt some text. The script
>>>>>> looks
>>>>>> fine to me, but it won't run and I can't figure out why. I have
>>>>>> attached
>>>>>> it,
>>>>>> if anyone knows why it doesn't work please let me know!
>>>>>>
>>>>> What do you mean 'it won't run'? Do you get an error with Traceback?
>>>>>
>>>>> I glanced at your code, and your dictionary ends like this: , 'X':'A',
>>>>> 'Y':'B', 'Z':'C',
>>>>>
>>>>> There is no closing brace
>>>> OK,
>>>>
>>>> File "./crypto.py", line 6
>>>> def encrypt():
>>>> ^
>>>> SyntaxError: invalid syntax
>>>>
>>> First, don't reply to me, reply to the group. That might mean
>>> choosing reply all.
>>>
>>> So, your first problem is that the dictionary isn't closed. This is
>>> causing the error at line 6
>>>
>>> fix that and find your next error. It looks like there are lots of them
>>>
>>> With such a small file you would do better to just post the code
>>> directly. That way if people see problems they can point them out in
>>> the body of the reply
>>>
>>> good luck
>> #!/usr/bin/env python3
>>
>> import random
>> values = {'a':'d', 'b':'e', 'c':'f', 'd':'g', 'e':'h', 'f':'i', 'g':'j',
>> 'h':'k', 'i':'l', 'j':'m', 'k':'n', 'l':'o', 'm':'p', 'n':'q', 'o':'r',
>> 'p':'s', 'q':'t', 'r':'u', 's':'v', 't':'w', 'u':'x', 'v':'y', 'w':'z',
>> 'x':'a', 'y':'b', 'z':'c', 'A':'D', 'B':'E', 'C':'F', 'D':'G', 'E':'H',
>> 'F':'I', 'G':'J', 'H':'K', 'I':'L', 'J':'M', 'K':'N', 'L':'O', 'M':'P',
>> 'N':'Q', 'O':'R', 'P':'S', 'Q':'T', 'R':'U', 'S':'V', 'T':'W', 'U':'X',
>> 'V':'Y', 'W':'Z', 'X':'A', 'Y':'B', 'Z':'C'}
>> def encrypt():
>> textInputE = input('Please enter the text you wish to encrypt: ')
>> textInputE.list()
>> for Eletter in textInputE.list():
>> try:
>> print (values[Eletter])
>> except KeyError:
>> print ('Sorry, that input couldn\'t be parsed as text. Try
>> again.')
>> input('Press Enter')
>> def decrypt():
>> textInputD = input('Please enter the numbertext you wish to decrypt')
>> textInputD.list()
>> for Dletter in textInputD.list():
>> try:
>> print (values[Dletter])
>> except KeyError:
>> print ('Sorry, that input couldn\'t be parsed as numbertext from
>> our cipher. Please try again.')
>> input('Press Enter')
>>
>> while True:
>> EorD = input('Encrypt or Decrypt: ')
> so are you sure the line above is really what you have in your code?
> check the quotes
>
>> if EorD == 'Encrypt' or EorD == 'encrypt':
>> encrypt()
>> elif EorD == 'Decrypt' or EorD == 'decrypt':
>> decrypt()
>> else:
>> print('Encrypt or Decrypt?')
>>
>> Thanks, I am not quite used to this client yet. The next error is:
>>
>> Traceback (most recent call last):
>> File "crypto.py", line 25, in <module>
>> EorD = input('Encrypt or Decrypt: ')
>> File "<string>", line 1, in <module>
>> NameError: name 'Encrypt' is not defined
>>
>
>
OK, I have put it back into Python 2.7, and now I get:
Traceback (most recent call last):
File "crypto.py", line 27, in <module>
encrypt()
File "crypto.py", line 7, in encrypt
textInputE.list()
AttributeError: 'str' object has no attribute 'list'
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